CN108306479B - Armature and permanent magnetism magnetic yoke sports type permanent-magnetism linear motor and its operation method simultaneously - Google Patents
Armature and permanent magnetism magnetic yoke sports type permanent-magnetism linear motor and its operation method simultaneously Download PDFInfo
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- CN108306479B CN108306479B CN201810060158.6A CN201810060158A CN108306479B CN 108306479 B CN108306479 B CN 108306479B CN 201810060158 A CN201810060158 A CN 201810060158A CN 108306479 B CN108306479 B CN 108306479B
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- armature
- permanent
- mover
- magnetism
- magnetic yoke
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
- H02K41/031—Synchronous motors; Motors moving step by step; Reluctance motors of the permanent magnet type
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Linear Motors (AREA)
Abstract
The invention discloses a kind of armature and permanent magnetism magnetic yoke sports type permanent-magnetism linear motor and its operation method, including mover, stator and two linear bearings simultaneously, mover includes armature, mover fixed connection structure, two permanent magnetism magnetic yokes and three armature connecting terminals；Stator includes stator support and two set of permanent magnets, permanent magnet magnetizes along air gap direction, and it is fixed on stator support vertically downward, linear bearing is placed on stator support along permanent magnet two sides, armature is connected at the top of motor by mover fixed connection structure with permanent magnetism magnetic yoke, the mover of motor is collectively formed, the lower part of mover is connect with linear bearing, realizes the linear motion of motor.It is the configuration of the present invention is simple, at low cost, light-weight, easily controllable, it can be effectively reduced motor weight and cost, improve the power density and thrust density of permanent-magnetism linear motor.
Description
Technical field
The invention belongs to motor fields, and in particular to a kind of armature and permanent magnetism magnetic yoke simultaneously sports type permanent-magnetism linear motor and
Its operation method.
Background technique
Since permanent-magnetism linear motor has, structure is simple, thrust density is high, power density is high, running precision is high, acceleration
Greatly, it safeguards the advantages that simple, is widely used in the fields such as industry, rail traffic, national defence.Permanent-magnetism linear motor can be using dynamic electricity
Two kinds of structure types of pivot and dynamic permanent magnetism.
On November 5th, 2014, University Of Suzhou's Liu Ji column etc. disclose " permanent magnet linear synchronous motor ", using dynamic permanent magnetism knot
Structure, stationary part is longer, needs to increase the complexity of motor control using Discrete control.Therefore high thrust, Gao Jia are being needed
The occasion of speed often selects the structure type using dynamic armature.
Peng Bing of Shenyang University of Technology et al. propose " v-shaped end tooth weaken permanent-magnetism linear motor " (Peng Bing, Song get Xue,
Child is opened, Liu Tiefa v-shaped end tooth weakens permanent-magnetism linear motor end reluctance force wave method [J] China electrical engineering
Report, 2016,36 (14): 3940-3946.), the structure type of the dynamic armature of motor use, however the permanent magnet in the structure
It is only just live part in the space in armature, remaining is invalid permanent magnetism, therefore its permanent magnetism magnetic yoke can be omitted, a side
Face can reduce the cost of motor permanent magnetism magnetic yoke, on the other hand can mitigate the overall weight of motor.
Summary of the invention
The purpose of the present invention is to provide a kind of armatures and sports type permanent-magnetism linear motor and its operation simultaneously of permanent magnetism magnetic yoke
Method solves the problems, such as that existing dynamic armature permanent-magnetism linear motor permanent magnetism magnetic yoke is partially in invalid state.
The technical solution for realizing the aim of the invention is as follows: a kind of armature and permanent magnetism magnetic yoke sports type permanent-magnet linear electricity simultaneously
Machine, including mover, stator and two linear bearings, mover and stator connect realization linear motion by linear bearing；Mover packet
Include armature, mover fixed connection structure, two permanent magnetism magnetic yokes and three armature connecting terminals；Stator includes stator support and two
Set of permanent magnets, each set of permanent magnets include N number of permanent magnet, N >=2；Two linear bearing parallel intervals are fixed on stator support top
Face, two permanent magnetism magnetic yokes are arranged in parallel, and the bottom of two permanent magnetism magnetic yokes is slided along two linear bearings respectively, and top is fixed on dynamic
The bottom both ends of sub- fixed connection structure, armature are fixed along the bottom centre of mover fixed connection structure, armature and permanent magnetism magnetic yoke
Between form U-shaped channel, three armature connecting terminals are fixed on mover fixed connection structure, between two set of permanent magnets are parallel
Every being arranged on stator support, it is located between two linear bearings, when permanent-magnet magnetic yoke strap moves armature and mover fixed connection structure
When along linear bearing sliding, the magnetic force line cutting armature of permanent magnet.
A kind of operation method based on armature and permanent magnetism magnetic yoke sports type permanent-magnetism linear motor simultaneously, the method is as follows:
When as motor running, after armature is passed through three phase sine synchronizing current identical with movement velocity, armature is moved
By electromagnetic force between sub- fixed connection structure and three armature connecting terminals and permanent magnet, so that armature, mover are fixedly connected
Structure and three armature connecting terminals generate linear slide by linear bearing；
When running as generator, external equipment drives armature, mover fixed connection structure and three armature terminals
Son is moved along a straight line by linear bearing, so that the magnetic line of force of armature cutting permanent magnet, generates induced electromotive force.
Compared with prior art, the present invention its remarkable advantage: (1) assembly is simple, is easily achieved modularization processing: Mei Ge electricity
The form of pivot winding is the same, can use a set of skeleton coiling；Common process mode can be used to carry out in motor other component,
Assembly mostly uses bolt or linear bearing.
(2) reduce motor cost and weight: permanent magnetism magnetic yoke is moved with armature, when armature movement is to certain position, forever
Magnetic magnetic yoke is also at corresponding magnetic conduction position, realizes the closure of permanent magnetic circuit, thus realize the energy converting between mechanical of motor, it should
The permanent magnetism magnetic yoke in invalid state can be effectively reduced in mode, reduces the cost and overall weight of motor.
Detailed description of the invention
Fig. 1 is the three dimensional structure diagram of armature of the present invention and permanent magnetism magnetic yoke sports type permanent-magnetism linear motor simultaneously.
Fig. 2 is armature Circular Winding schematic diagram of the invention.
Fig. 3 is the cross-sectional view of armature of the present invention and permanent magnetism magnetic yoke sports type permanent-magnetism linear motor simultaneously.
Specific embodiment
Present invention is further described in detail with reference to the accompanying drawing.
In conjunction with Fig. 1, Fig. 2 and Fig. 3, a kind of armature and permanent magnetism magnetic yoke sports type permanent-magnetism linear motor simultaneously, including it is mover, fixed
Son and two linear bearings 6, mover and stator realize linear motion by the connection of linear bearing 6；Mover includes armature 3, mover
4, two permanent magnetism magnetic yokes 1 of fixed connection structure and three armature connecting terminals 7；Stator includes stator support 5 and two permanent magnets
Group, each set of permanent magnets include N number of permanent magnet 2, N >=2；Two 6 parallel intervals of linear bearing are fixed on 5 top surface of stator support,
Two permanent magnetism magnetic yokes 1 are arranged in parallel, and the bottom of two permanent magnetism magnetic yokes 1 is slided along two linear bearings 6 respectively, and top is fixed on dynamic
The bottom both ends of sub- fixed connection structure 4, armature 3 are fixed along the bottom centre of mover fixed connection structure 4, armature 3 and permanent magnetism
U-shaped channel is formd between magnetic yoke 1, three armature connecting terminals 7 are fixed on mover fixed connection structure 4, two permanent magnets
Group parallel interval setting, by T-slot and glue stator support 5, and is located between two linear bearings 6.When permanent magnetism magnetic yoke 1
When armature 3 and mover fixed connection structure 4 being driven to slide along linear bearing 6, the magnetic force line cutting armature 3 of permanent magnet 2, permanent magnet
Gap between 2 and armature 3 is air gap.
Electric current in armature 3 is introduced from outside by armature connecting terminal 7, and armature 3 includes Circular Winding and protective case, ring
Shape winding is located in protective case, and Circular Winding is convenient for modular manufacturing, protective case, which is fixed on, to be fixedly connected along direction of motion coiling
The bottom centre of structure 4.
The protective case uses non-magnet material.
The permanent magnetism magnetic yoke 1 is folded or is process by ferromagnetic material.
The material of the stator support 5 is non-magnet material.
N number of permanent magnet 2 in each set of permanent magnets is arranged successively along the direction of motion, and the magnetizing direction of permanent magnet 2 is equal
It is identical along air gap direction, to be located at position 2 direction of magnetization of corresponding two pieces of permanent magnets in two different set of permanent magnets, positioned at same
It is opposite along two pieces of adjacent 2 direction of magnetizations of permanent magnet of the direction of motion in a set of permanent magnets.
A kind of operation method based on the armature and permanent magnetism magnetic yoke sports type permanent-magnetism linear motor simultaneously, the method is as follows:
When as motor running, after armature 3 is passed through three phase sine synchronizing current identical with movement velocity, armature 3,
By electromagnetic force between mover fixed connection structure 4 and three armature connecting terminals 7 and permanent magnet 2, so that armature 3, mover are solid
Determine connection structure 4 and three armature connecting terminals 7 and linear slide is generated by linear bearing 6.When being run as generator, outside
Portion's equipment drives armature 3, mover fixed connection structure 4 and three armature connecting terminals 7 to move along a straight line by linear bearing 6, makes
The magnetic line of force that armature 3 cuts permanent magnet 2 is obtained, induced electromotive force is generated.
The present invention, which can not only be used for motor running, can also be used as generator operation.
When as generator operation, electric mover is driven to move in a straight line by external device (ED), each phase armature 3 of motor is forever
Cutting magnetic induction line in magnetic magnetic field generates the induced electromotive force of sinusoidal variations, connects external loading when passing through armature connecting terminal 7
Afterwards, electric current is generated, realizes generator operation.
When as motor running, frequency converter outlet terminal is connected into armature connecting terminal 7, according to sample motor initial bit
The movement velocity of angle setting and motor uses vector controlled to motor, realizes the linear motion of the mover of motor.
Present invention assembly is simple, is easily achieved modularization, and effectively reduce permanent magnetism magnetic yoke inactive portion weight and
Cost improves the power density and thrust density for improving permanent-magnetism linear motor, can preferably be applied to high thrust and Gao Jia
The occasion of speed operation.
Claims (7)
1. a kind of armature and permanent magnetism magnetic yoke sports type permanent-magnetism linear motor, including mover, stator and two linear bearings simultaneously
(6), mover and stator are connected by linear bearing (6), realize the linear motion of mover；It is characterized by: mover includes armature
(3), mover fixed connection structure (4), two permanent magnetism magnetic yokes (1) and three armature connecting terminals (7)；Stator includes stator support
(5) and two set of permanent magnets, each set of permanent magnets include N number of permanent magnet (2), N >=2；Two linear bearing (6) parallel intervals are solid
It is scheduled on stator support (5) top surface, two permanent magnetism magnetic yokes (1) are arranged in parallel, and the bottom of two permanent magnetism magnetic yokes (1) is straight along two respectively
Spool holds (6) sliding, and top is fixed on the bottom both ends of mover fixed connection structure (4), and armature (3) is fixedly connected with knot along mover
The bottom centre of structure (4) is fixed, and U-shaped channel, three armature connecting terminals (7) are formd between armature (3) and permanent magnetism magnetic yoke (1)
It is fixed on mover fixed connection structure (4), two set of permanent magnets parallel intervals are arranged on stator support (5), are located at two
Between linear bearing (6), when permanent magnetism magnetic yoke (1) drives armature (3) and mover fixed connection structure (4) sliding along linear bearing (6)
When dynamic, the magnetic force line cutting armature (3) of permanent magnet (2).
2. armature according to claim 1 and permanent magnetism magnetic yoke sports type permanent-magnetism linear motor simultaneously, it is characterised in that: armature
(3) electric current in is introduced from outside by armature connecting terminal (7), and armature (3) includes Circular Winding and protective case, Circular Winding
In protective case, for Circular Winding along direction of motion coiling, protective case is fixed on the bottom centre of fixed connection structure 4.
3. armature according to claim 2 and permanent magnetism magnetic yoke sports type permanent-magnetism linear motor simultaneously, it is characterised in that: described
Protective case uses non-magnet material.
4. armature according to claim 1 and permanent magnetism magnetic yoke sports type permanent-magnetism linear motor simultaneously, it is characterised in that: described
Permanent magnetism magnetic yoke (1) is folded by ferromagnetic material.
5. armature according to claim 1 and permanent magnetism magnetic yoke sports type permanent-magnetism linear motor simultaneously, it is characterised in that: described
The material of stator support (5) is non-magnet material.
6. armature according to claim 1 and permanent magnetism magnetic yoke sports type permanent-magnetism linear motor simultaneously, it is characterised in that: described
N number of permanent magnet (2) in each set of permanent magnets is arranged successively along the direction of motion, and the magnetizing direction of permanent magnet (2) is along air gap
Direction, corresponding two pieces of permanent magnets (2) direction of magnetization in position is identical in two different set of permanent magnets, is located at the same permanent magnetism
It is opposite along two pieces of adjacent permanent magnet (2) direction of magnetizations of the direction of motion in body group.
7. the fortune based on armature described in any one of claim 1-6 and permanent magnetism magnetic yoke sports type permanent-magnetism linear motor simultaneously
Row method, which is characterized in that method is as follows:
When as motor running, after armature (3) is passed through three phase sine electric current identical with power frequency, armature (3), mover
By electromagnetic force between fixed connection structure (4) and three armature connecting terminals (7) and permanent magnet (2), so that armature (3), dynamic
Sub- fixed connection structure (4) and three armature connecting terminals (7) pass through linear bearing (6) generation linear slide；
When running as generator, external equipment drives armature (3), mover fixed connection structure (4) and three armature wiring
Terminal (7) is moved along a straight line by linear bearing (6), so that the magnetic line of force of armature (3) cutting permanent magnet (2), generates induction electric
Gesture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810060158.6A CN108306479B (en) | 2018-01-22 | 2018-01-22 | Armature and permanent magnetism magnetic yoke sports type permanent-magnetism linear motor and its operation method simultaneously |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810060158.6A CN108306479B (en) | 2018-01-22 | 2018-01-22 | Armature and permanent magnetism magnetic yoke sports type permanent-magnetism linear motor and its operation method simultaneously |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108306479A CN108306479A (en) | 2018-07-20 |
| CN108306479B true CN108306479B (en) | 2019-06-25 |
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| CN201810060158.6A Active CN108306479B (en) | 2018-01-22 | 2018-01-22 | Armature and permanent magnetism magnetic yoke sports type permanent-magnetism linear motor and its operation method simultaneously |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5525408B2 (en) * | 2009-11-09 | 2014-06-18 | 山洋電気株式会社 | Electromechanical equipment |
| CN101741214B (en) * | 2010-03-10 | 2012-06-27 | 哈尔滨工业大学 | Built-in permanent magnet dual-side flat plate type linear motor |
| CN201797431U (en) * | 2010-08-31 | 2011-04-13 | 东南大学 | Linear generator suitable for low-speed waves |
| CN104578635B (en) * | 2015-01-09 | 2017-04-12 | 浙江大学 | Asymmetric double-stator cylindrical permanent magnet linear motor |
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| CN108306479A (en) | 2018-07-20 |
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